I am working on the proj that needed 2 MCU and nrf51822 work as slave.
I would like to know any ref on how to firmware upgrade on board without external tool?
We're looking for a Nordic nRF51822 based low profile/small USB dongle that we can use for our iBeacon software.
It would need to come complete with casing and the ability...
Hi all,
i want to establish connection between two threads in cmsis-rtos, can i use
1) semaphore to do this?
2)message queue should be used or any other ipcs can be...
Hi,
I have two CPU in our product. (STM32F2 and Nordic nrf51422).
I use serialization function to link those two CPU(refer to ble_s110_serialization sample)
But I find...
Hi,
My behavior is as follows
Turn on my device(use 51422) and advertising(2 Service and 3 Characteristic)
Turn on my cell phone(Samsung Note3),scan my device...
Hello:
I used analog IIC write MPU6050. Again after power download programs, mpu6050 can run up there ACK response. But the debug will not run. Simulation IIC because no...
Hello!
How can I communicate with my nRF24L01+ and nRF51822 at the same time. I can set up same channel, CRC-mode and I don't use ESB. But what about address? How do I set...
Hi,
Here I have a code for HC-SR04 from electronut.in which has been written for softdevice 110,
right now I am using BDM-200-EVAL-M and SDK version of 11 which supports...
I use the IAR 7.5 compiler and SDK 11.0.0
The program does not work well so I modified the starting address of rom(0x1c000->0x0).
(Ble_stack_init) After part does not work...
Do you have any recommended IAR Embedded Workbench for ARM versions?
It can not be set in 6.5, and can not be operated in 7.5.
nRF52832 PCA10040 V0.9.0
Hi,
I'm writing a program on nrf51 that needs to send a lot of data through notification. How many bytes can be sent at one time? And is the nrf51 capable to read the sensor...
SDK:11.0.0
MCU:nRF52832
Using example:ble_ant_app_hrm
SoftwateDevice Version:s332
PWM is turned on and accurate 4MHz is available before entering ble_stack_init...
Hello everyone,
I can make nrfjprog works up to the version 9.1.x but I received the nRF52840-PDK and can't get nrfjprog to work with version 9.2.x.
Error message is...
Hi All,
Recently i bought myself a nrf52 DK. now i finaly have time to play with it, it does not respond like described.
I tried to go back to the basic:
www.nordicsemi...
I'm using nrf52832 and want to add a custom characteristics.
But if I call the function below, the device stops advertising.
Do you have any idea?
static void add_characteristics...
I have used the BLE UART example to connet mobile phone, the mobile phone just can recivecd 50 data package per second in the most, and each package just have 20 byte, but...
I'm sorry for this easy question.
I'm just starting to develop an application using a nrf52832.
I want to use uart functions, so I added a line #include "app_uart.h"....
Hi,
Does anyone knows if it's possible to change the name or description of the Port (COM) of a nordic device (pca10031 and pca10028)?
The actual name or description...
Hello,
if we want protect our (central) device against tracking and still allow it to connect with specific Peripheral we can use whitelist with IRK (and?) mac address...
eclipse_log.txt
link text
hello there i am trying to make environment for gcc and eclipse with nrf51. i am following above link. i changed my Makefile.winows ...
Dear all，
i configure pin 3 to float input.when the pin3 input 0.3VDD--0.7VDD,the chip current have 25--400ua,other is normal(4ua) Why?
SDK:8.1.0
s110
#define PHOTO_PIN_NUMBER...
Hi,
I am using nrf pwm library from here: github.com/.../nrf51-pwm-library . I am driving two gpios for a piezo buzzer.
I call pwm_init(), then use the call set_frequency_and_duty_cycle...
